diff --git a/app/pktgen-constants.h b/app/pktgen-constants.h
index 0e4aafb..f58211b 100644
--- a/app/pktgen-constants.h
+++ b/app/pktgen-constants.h
@@ -18,7 +18,11 @@ enum {
 	DEFAULT_PKT_BURST       = 64,	/* Increasing this number consumes memory very fast */
 #ifdef RTE_LIBRTE_VMXNET3_PMD
 	DEFAULT_RX_DESC         = (DEFAULT_PKT_BURST * 8 * 2),
+#ifdef RTE_LIBRTE_ENA_PMD
+	DEFAULT_TX_DESC         = DEFAULT_RX_DESC,
+#else /* !RTE_LIBRTE_ENA_PMD */
 	DEFAULT_TX_DESC         = DEFAULT_RX_DESC * 2,
+#endif /* RTE_LIBRTE_ENA_PMD */
 #else
 	DEFAULT_RX_DESC         = (DEFAULT_PKT_BURST * 8),
 	DEFAULT_TX_DESC         = DEFAULT_RX_DESC * 2,
@@ -30,7 +34,7 @@ enum {
 
 	DEFAULT_PRIV_SIZE       = 0,
 
-	NUM_Q                   = 16,	/**< Number of cores per port. */
+	NUM_Q                   = 32,	/**< Number of cores per port. */
 };
 #define DEFAULT_MBUF_SIZE	(PG_ETHER_MAX_JUMBO_FRAME_LEN + RTE_PKTMBUF_HEADROOM) /* See: http://dpdk.org/dev/patchwork/patch/4479/ */